Kermit and Miss Piggy, various "Muppets" movies.
OK, we love the Muppets, really. But this couple never made sense to us. Not only do they not have chemistry, they don't even have biology. And Kermit's much too nice for that diva. less

Kermit and Miss Piggy, various "Muppets" movies.
OK, we love the Muppets, really. But this couple never made sense to us. Not only do they not have chemistry, they don't even have biology. And Kermit's much ... more

Leonardo DiCaprio and Kate Winslet, "Titanic."
We love both of these actors. But, quite frankly, they weren't convincing as young kids who fall in love at the drop of a hat. Kate, in particular, seems too level-headed for that sort of thing. less

Leonardo DiCaprio and Kate Winslet, "Titanic."
We love both of these actors. But, quite frankly, they weren't convincing as young kids who fall in love at the drop of a hat. Kate, in particular, seems too ... more

Tom Cruise and Kelly McGillis, "Top Gun."
We all know that the real chemistry was between Cruise's Maverick and Val Kilmer's "Iceman." Seriously, though, McGillis didn't seem like the type to fall for a cocky fighter jock. less

Tom Cruise and Kelly McGillis, "Top Gun."
We all know that the real chemistry was between Cruise's Maverick and Val Kilmer's "Iceman." Seriously, though, McGillis didn't seem like the type to fall for a cocky ... more

Whitney Houston and Kevin Costner, "The Bodyguard."
It would have helped if at least one of them could act. We still love Whitney as a singer (RIP), so long as we never have to hear "I will always love you" ever, ever again. less

Whitney Houston and Kevin Costner, "The Bodyguard."
It would have helped if at least one of them could act. We still love Whitney as a singer (RIP), so long as we never have to hear "I will always love you" ... more

Nicole Kidman and Tom Cruise, "Eyes Wide Shut."
Cruise again. The craziest thing about this bad onscreen couple is that they were actually married at the time. Guess we should have seen the divorce coming.

Nicole Kidman and Tom Cruise, "Eyes Wide Shut."
Cruise again. The craziest thing about this bad onscreen couple is that they were actually married at the time. Guess we should have seen the divorce coming.

Natalie Portman and Hayden Christensen, "Star Wars: Episode II -- Attack of the Clones" and "Episode III -- Revenge of the Sith."
It's established by now that George Lucas lost whatever touch he ever had for this sort of thing. We could see Padme falling for a dashing young Jedi, if only there was one in these movies. less

Natalie Portman and Hayden Christensen, "Star Wars: Episode II -- Attack of the Clones" and "Episode III -- Revenge of the Sith."
It's established by now that George Lucas lost whatever touch he ever had for ... more